/**
 * `olam upgrade --history` — read + format the JSONL audit log.
 *
 * Phase 2c — C2.
 */
import type { Command } from 'commander';
export interface HistoryOpts {
    readonly limit: number;
    readonly json: boolean;
}
export declare function parseHistoryOpts(raw: {
    n?: string | number;
    json?: boolean;
}): HistoryOpts;
export declare function handleHistory(opts: HistoryOpts): void;
export declare function registerHistoryFlag(_program: Command): void;
//# sourceMappingURL=upgrade-history.d.ts.map